CZ67997A3 - Smoker's article - Google Patents

Abstract

The invention relates to a smoking article having a high proportion of non-combustible, inorganic material and a relatively low level of visible sidestream. The smoking article comprises a substantially non-combustible, wrapper which extends along the full length of the smoking material rod and enwraps a combustible fuel source and aerosol generating means, both of which extend substantially along the full length of the smoking material rod. Various suitable fuel source systems and aerosol generating systems are described. The article has a visible burn line which advances along the article and produces an ash which can be removed by the smoker in the normal way. <IMAGE>

Description

Smoking product

Technical field

The invention relates to a smoking article, in particular to a smoking article having a non-conventional structure and a different combustion mode, the outer appearance of which resembles conventional smoking articles.

BACKGROUND OF THE INVENTION

Many known solutions have attempted to produce smoking articles supplying a smoker with an aerosol similar to tobacco smoke. Some proposals have focused on producing aerosol vapors from aerosol-producing substances by heating these aerosol-producing substances with surrounding combustible material, such as cut tobacco. Smoke barriers prevent smoke from the smoldering combustible material into the mouth of the smoker while aerosol vapors can pass freely to the smoker. Such solutions are described in US-PS 3,258,015 and 3,356,094.

The first of these known smoking articles is provided with an outer cylindrical shell of a combustible material with good glow properties, in particular made of cut tobacco or reconstituted tobacco or other source of nicotine and water vapor. The basic disadvantage of such products is that eventually, after the tobacco material has burned, a metal tube protrudes from the rest of the smoking article. A further disadvantage is the formation of a significant proportion of the thermal decomposition products of the tobacco and a considerable proportion of the side stream of tobacco smoke. This solution was later modified by the embodiment of the latter patent, using a tube made of a material such as inorganic salts or resin bonded ceramic materials, which by heating become more brittle and can then be knocked out as a cigarette ash. In this embodiment, however, a considerable amount of thermal decomposition products is produced during smoking and, since tobacco is burned, a visible smoke flow is also produced.

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Aerosol inhalation devices, as described, for example, in EP-A-0 174 645 and EP-A-0 330 690, comprise devices utilizing heat transfer from the combustion element to physically discrete aerosol generating elements. An essential feature of this known solution is that the aerosol generating elements are always physically separated from the combustion element and are always heated by heat transfer from the element with good heat conductivity, never by combustion. The result is always a shorter combustion element located at one end of the smoking article and kept away from direct contact with the aerosol generating element.

Other new known solutions are described in GB-PS 1 185 887, US-PS 5 060 667 and EP-A-0 405 190. In all these devices, the fuel element in the form of a ring is arranged around the aerosol generating element.

GB-PS 1 185 857 discloses a product supplying to a smoker substantially inorganic smoke of readily absorbable salts and producing ash which could be removed similarly to conventional smoking articles. However, smoking articles are expected to produce some visible smoke produced by the cellulosic components within some parts of the smoking article.

US-PS 5,060,667 discloses a coaxially arranged tobacco-containing combustion element surrounded by a metal thermally conductive tube and a flanged portion at one end to prevent smoke from the combusted tobacco from flowing through the flavor source and surrounding the heat conducting tube. Thus, only the aerosol produced by the flavor source material reaches the smoker. The entire smoking article in this embodiment does not burn, but only the tobacco material as well as the flavor source material is burned, thereby producing a visible stream of smoke and utilizing a significant percentage of expensive material such as a *.

and a mouthpiece member. Because arranged annular around the tobacco.

EP-A-0 405 190 seeks to provide a smoking article that provides the user with a smoking enjoyment by heating the contents of the smoking article without burning tobacco. Most of these products include an annular carbon combustion segment, a physically discrete aerosol generating element disposed concentrically within the combustion element, a separating member between the combustion element and the aerosol generating means, substantially preventing radial flow of the substance through the smoking article and the source of combustion material is an aerosol generating element, it is preferable to enclose the source of combustion material in the longitudinal direction with an insulating sheath, which can then be wrapped in a conventional cigarette paper. There is also provided an alternative embodiment comprising a coaxially positioned source of low combustible carbon combustible material surrounded along its length by an insulating element which in turn is surrounded by tobacco wrapped in a paper wrapper. The tobacco in this embodiment only heats and does not burn, as in other embodiments, but unlike the other embodiments described in EP-A-0 405 190, the smoking article does not burn in this case, because even the tobacco does not burn when smoking. No practical use of the product is described in this document, so this variant appears to be a theoretical and hardly applicable design. Obviously, the authors of this proposal would have considerable difficulty in putting this design concept into practice. This design variant also uses a considerable amount of expensive tobacco as one component of the material to create an aerosol source that the smoker will never use sufficiently.

US-PS 2 998 012 discloses a smoking article having a non-flammable woven glass fiber wrapper with at least one adhesive material, calcium carbonate to prevent combustion, propylene glycol plasticizer and diatomaceous earth;

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which should maintain the impermeability of the packaging and its cool contact surface. A disadvantage of this solution is that the package still retains a predominantly fibrous structure due to the content of woven glass fibers. Such a package would be unusable for commercial smoking articles, US-PS 4,961

438 discloses a smoking article that does not burn along its length when smoking, but in which, by smoldering a heat source, the air drawn into the device by an aerosol of an aerosol-producing material deposited on a substrate is heated. The casing of this device consists of a non-flammable tube with high heat conductivity. Such high heat conductivity is unsuitable for commercial smoking articles. In particular, the packaging according to the invention seeks to overcome these basic drawbacks.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a smoking article which, in its use, does not produce a significant amount of combustion products.

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It is a further object of the present invention to provide a smoking article that produces a very small visible stripe of smoke when smoked substantially smaller than prior art smoking articles comprising a cut tobacco rod wrapped in cigarette wrapping paper to which a component limiting the amount of visible smoke produced or of paper comprising a component reducing the amount of visible smoke produced leaving the side.

Another object of the invention is to eliminate the defects of the known smoking articles described at the outset, while maintaining the substantially conventional external appearance of the smoking articles known to date.

Yet another object of the invention is to preserve the physical phenomena of smoking, including the formation of ash on a cigarette, which could be removed, for example, by knocking, similar to conventional cigarettes during smoking.

SUMMARY OF THE INVENTION

These objects are solved by a smoking article according to the invention, wherein the smoking article comprising the smoking article rod comprises a non-combustible wrapper extending substantially along the length of the smoking article rod and surrounding the combustible source of combustion substance over substantially the entire length thereof. a smoking article rod, and an aerosol generating means also extending along the length of the smoking material rod.

As used herein, the terms smoking rod or smoking material are intended to refer to that portion of the smoking article that is contained within a substantially non-combustible and non-combustible package and is not related to the combustibility or other properties of the individual components of the smoking article rod.

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According to a further embodiment of the invention, the smoking article with the smoking article rod comprises a substantially non-combustible wrapper extending substantially along the length of the smoking article rod and surrounding the combustible fuel source substantially along the entire length of the smoking article rod and aerosol generating means extending along the entire length. smoking material sticks.

The invention also provides a non-combustible and non-combustible smoking article wrapper formed of a predominantly non-combustible inorganic filler material, binder or plasticizer, and may preferably contain a small amount of cellulosic fibrous material.

The inorganic non-combustible filler is preferably a particulate material and most preferably a non-metallic material.

The present invention also provides a method for producing a substantially non-combustible wrapper for smoking articles comprising, in particular, a non-combustible inorganic filler and binder, wherein a mixture of non-combustible inorganic filler and binder is first formed, which mixture is then extruded to form a hollow tube. contact with a material which causes rapid hardening of the extruded tube.

The material for rapid hardening of the hollow tube may be a water evacuating substance which removes the water contained in the extruded article. Alternatively, the material may be a solution which renders the soluble binder contained in the mixture insoluble, or may be a hydrophilic substance that draws water from the mixture, containing a fresh proportion of water.

The invention also provides a source of combustible material for a smoking article having a length corresponding to the length of the entire smoking article, the source of combustible material, wherein the source of combustible material is provided. · Contains carbon material, inorganic, non-combustible. · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · a binder and optionally a flame promoter.

The invention further provides a fuel source for a smoking article having a length substantially corresponding to the total length of the smoking article, the fuel source comprising carbon, an inorganic filler, an organic binder and optionally a plasticizer and an inorganic binder.

The invention also relates to an aerosol-producing composition in a smoking article comprising inorganic filler material, aerosol-producing compositions and an organic or inorganic binder.

The invention also provides a fuel source producing an aerosol in a smoking article comprising an organic filler material, an aerosol-producing substance, an organic binder, and optionally a non-combustible inorganic filler material.

The invention further provides a fuel source producing an aerosol in a smoking article comprising a non-combustible inorganic filler material, an aerosol generating substance, an organic or inorganic binder, and carbon.

According to a preferred embodiment of the invention, the present invention also provides a fuel source producing an aerosol in a smoking article comprising an organic filler material, optionally an inorganic filler material, aerosol generating means, an organic binder and carbon.

Basically non-flammable packaging

The substantially non-combustible coating is formed from a predominantly non-combustible inorganic filler material. The term predominantly in this specification means that the package comprises at least 65% and typically 70% of the material. Inorganic filler material

· - - · - - - - - - - - - - - - - - / / / / / / / / / / / / / / / / / / Advantageously produces very little visible smoke or even no smoke when smoking. In particular, the non-flammable package comprises at least 80% and in particular at least 90% inorganic filler material based on the total weight of the package. Preferably, the non-combustible inorganic filler material comprises at least one of perlite, vermiculite, diatomaceous earth, colloidal silica, chalk, magnesium oxide, magnesium sulfate, magnesium carbonate, or other low density non-combustible filler materials known to those skilled in the art.

The non-combustible coating may contain a small amount of cellulosic fibrous material. The content of the fibrous material in the non-flammable package is less than 10% by weight, preferably less than 5% and in particular less than 2%. Most preferred is an embodiment in which no fibrous material is contained in the package.

The packaging preferably comprises a binder and / or a plasticizer. These components may be present in the package in an amount of up to 30% by weight of the total weight of the package. The amount of binder is up to 25% of the total weight of the package. The exact proportion will depend on the taste characteristics, the acceptable limits of the visible strip of smoke and the strength of the finished product, or the manufacturing techniques used. The binder may be present in an amount by weight of about 8 to 10% by weight of the package, although it is possible that the amount of binder may not exceed 5% by weight of the package. The binder may be an organic binder, for example a cellulose derivative, for example a carboxymethylcellulose salt, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose or cellulose ethers, alginic binders including soluble alginates such as ammonium alginate, sodium alginate, sodium-calcium alginate, calcium-ammonium alginate, potassium alginate, magnesium, triethanolamine alginate, propylene glycol alginate, insoluble alginates, which can be converted to soluble alginates by the addition of dissolving agents such as ammonium hydroxide. Examples of such 4

9 Alginates are alginate of aluminum, copper alginate, zinc alginate, silver alginate. Alginates that are initially insoluble but which undergo a manufacturing process that would render them insoluble in the final product can also be used, especially for sodium alginate transitioning to calcium alginates, as described later. Other organic binders include gum arabic, ghatti gum, tragacanth gum, karai gum, carob gum, acacia gum, guar gum, quince seed gum, xanthan gum, agar, agarose, carrageenan, or sage. Pectins and pectin materials as well as starches may also be used as binders. Other suitable gum materials may be selected from various documentation materials, for example Industrial Gums, Ed.Wistler (Academic Press). It is also possible to use combinations of these materials. The binder may also be inorganic non-flammable binders such as potassium silicate, magnesium oxide in combination with potassium silicate, or, for example, some cements or mixtures thereof.

This package, while developing or almost no visible smoke, produces ash with acceptable color and quality. Thus, the smoking article has a visible line of burning during smoking that extends along the length of the article and allows the smoker to determine if the article is burning and to follow the smoking process. The visible burning line can be formed as a result of the combustion of the organic binder. In an alternative embodiment, the packaging composition may contain components that change color. The composition may also contain colorants which impart a color different from white to the container. These dyes can also change their color by heating and thus create a visible line of combustion, as is the case with CuSO ₄ .5H ₂ O.

The type of binder chosen will affect the permeability of the outer packaging. Binders, such as sodium salt, have been found to be Q-Q. »« · 9

Carboxymethylcellulose and propylene glycol alginate are particularly effective in forming the outer shell with sufficient permeability to maintain combustion of the fuel source within the shell. The second of these binders provides greater permeability of the same composition to the outer shell. The hydration time of some binders can play a role in determining the binder efficiency. Binders that are considered strong binders, such as hydroxypropylcellulose, may be used in smaller amounts to increase the permeability of the package, but the binder dose, on the other hand, must be kept large enough to provide the necessary strength to the package.

A plasticizer may also be present in the package up to 20% by weight of the package. The plasticizer is preferably present in an amount by weight of about 10% or less, in particular 5% or less of the total weight of the package. The plasticizer may be glycerin, propylene glycol, low melting fats or oils. However, according to the selected method of manufacturing the packaging, the plasticizer may be omitted from the production mixture. The plasticizer helps in the drying phase of the package to prevent shape changes and warping of the package, especially if the drying agent is, for example, hot air or other direct heat exposure. The amount of plasticizer, binder, or other organic filler material will affect the appearance of the burning line, such as its width, and the amount of visible side stream of smoke. The width of the burning line is generally not more than 5 mm and in particular has a width of between 2 and 3 mm. The width of the burning line depends on the composition of the combustible material in the product.

The package may contain materials that provide the odor of the by-product smoke that may emanate from the article. Suitable flavoring agents are, for example, citronelan, geraniol or vanillin.

The casing may be manufactured by a process of forming a solid slurry from the constituents of the casing, covering the surface of the rotating mandrel with the slurry and then removing excess moisture by physical removal. Or chemical agents. In an alternative process, the slurry may be cast as a layer on a drum or strip casting apparatus, or it may be extruded as a hollow tube, for example, with an extrusion head with a central mandrel forming a solid central portion, or extruded as a strip. The slurry may be sprayed, coated or pumped onto a suitably shaped system containing combustible and aerosol-forming substances.

The extrusion is suitably performed at a pressure that does not compromise the permeability of the casing and which is generally not more than 300 to 400 kPa on an extruder head of, for example, a piston extruder and not more than 900 kPa for an APV Baker Perkins extruder. The extrusion process may require foaming at the outlet of the extruder head to form a cellular structure, in which case a greater force may be applied to the die as the permeability is maintained in such a case.

After extrusion or application of the coating composition to the mold, the hollow blank or coated mandrel is exposed to heat or the mold is opened to remove excess moisture. The coating slurry may comprise a heat-activated binder, for example potassium silicate, magnesium oxide or hydroxypropylcellulose, which are activated at 40 ° C to 50 ° C. By exposing the coated mandrel or hollow blank obtained by extrusion to heat, the binder should be activated and the package should cure. Infrared or microwave heating is suitable for direct heating, and the use of hot air fans may affect the shape of the extrudate, especially at temperatures above 100 ° C.

The extrusion can be carried out by means of a single or double screw extruder or a piston extruder or a slurry pump.

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AND

The packaging preferably has a thickness of 0.1 to 1.0 mm, although it may have a wall thickness of 2 to 3 mm. The required thickness depends on the weight and permeability of the package. Therefore, it is possible to form either thin and dense packaging or packaging with thicker walls, but from a material with a lower density, so that the thickness depends on the composition of the packaging materials.

Alternative curing processes for curing containers use water-evacuating agents. These substances remove water from the slurry material of the casing and thus dry the casing. Thus, the slurry for making the wrapper may contain up to 45% by weight of light magnesium oxide, the specific amount being dependent on the residence time of the slurry in the extruder and the temperature of the extruder. The addition of magnesium oxide may also have beneficial effects on reducing the visible visible strip of smoke exiting the smoking article. Alternatively, the packaging material may be extruded into an ethanol bath or other highly hydrophilic material, wherein the ethanol sucks water out of the extrudate. Another alternative is to precipitate the insoluble alginate from the soluble alginate in the extruded package. This may be achieved, for example, by extruding a hollow tube of packaging material containing, for example, sodium alginate, into a bath of at least one electrolyte, for example, a 1.0 M calcium chloride solution. Calcium ions substitute sodium ions and cause very rapid curing of the extruded tube. In the latter two methods, instead of introducing the extruded tube into the bath, it is possible to use a spray of water-sucking substance onto the extruded element or sheet material used to make the package.

Part of the precipitation can be achieved by adding a subcritical amount of the precipitating agent to the extruder container and then completely precipitating the structure of the material by increasing the level of the precipitating agent in the material after extrusion. Other ·· ·· • " · · · ···· ·· · · · * · ·· • · · · · · " · · · · ·

the precipitation methods are based on the precipitation of the product obtained by extrusion into a high-ion electrolysis bath or a water-miscible alginate insoluble substance.

Another method of making a package according to the invention, as mentioned above in relation to binders, involves using conventionally insoluble alginate as a bonding material by converting it into a soluble alginate using a solubility providing agent and then curing the packaging material by removing the solubility providing agent or adding a separating agent.

These methods may be carried out sequentially, for example, the coating may be cured by precipitation of the soluble alginate containing the coating material in a calcium ion bath. The extrudate product may then be fed into a bath with a water-withdrawing agent, for example ethanol, and then heated to remove liquid residues. In another alternative preferred embodiment, the package may be dried after curing by any of the methods set forth above.

These methods of making the package are particularly advantageous for achieving good shape of the extruded product, since a high reaction rate is achieved and the volume of the package does not change, especially during the drying stages.

The coating may have a rigid and rigid structure, although it has been found that by using sodium alginate as a binder, flexible packages can also be produced, the alginate then precipitating into calcium alginate and then slowly drying. Flexibility is advantageous in view of the increased resistance of the product to damage during machine manufacturing and manual handling.

The packaging preferably is air permeable in the range of 1-300 Coresta Units (cm ³ / min / cm ^2/10 cm WG). The throughput can: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · E can be controlled by a number of methods, for example by coating the extruded packaging with a film-forming substance or otherwise restricting the permeability. Alternatively, sacrificial molecules can be introduced into the coating composition, which in turn can be removed after formation of the appropriate structure by changing the temperature or chemical reaction to increase the permeability of the coating structure.

In an alternative preferred embodiment, the wrapper may be a cellulose-based wrapper, for example a conventional cigarette paper, which has been treated to be non-flammable and thereby not produce visible smoke exiting the cigarette. The treated package is then cremated to form a visible combustion line. The paper can also create ash that the smoker can knock off.

The ashing characteristics of the packaging should be such that the packaging has sufficient strength or flexibility to be able to withstand finger pressure before and during smoking, but that after thermal degradation the structure of the packaging softens and leaves ashes that can easily upset by pressure or shaking. Some packagings may require the presence of agents that burn to ash and which, when burned, leave black residue that mimics conventional cigarette ash.

Fuel source

Preferably, the fuel source extends continuously from the mouth end of the smoking article to its ignition end except for the filter or the mouthpiece element. In an alternative embodiment, the fuel source may comprise a plurality of sections adjacent to each other such that combustion of the fuel source occurs continuously.

The end of the smoking article to be ignited preferably has the appearance of a conventional smoking article. Preferably, the ignited end of the smoking article is formed in a tobacco color in the color of the tobacco. Or other dark color, such as brown.

The fuel source may be provided with three delimited systems which may, however, overlap.

In these systems, the fuel source is physically separated from the aerosol generating means.

If the fuel source is physically separated from the aerosol generating means and has the shape of a rod, then in the first system it is prepared from carbonaceous material by pyrolysis of wood, for example a balsa wood stick, cotton, viscose rayon or other cellulose-containing materials. suitable for the product of the invention.

In this system, the fuel source comprises at least 85% by weight of pyrolyzed carbonaceous material. The fuel source preferably comprises at least 90% by weight of carbonaceous material. The fuel source also includes a combustion promoter, such as potassium nitrate, potassium citrate or potassium chlorate, in an amount of up to 10% by weight. Other combustion promoters are also known to those skilled in the art. Alternative kinds of carbon-containing system include the use of carbon fibers or carbon airgels.

The term carbon as used herein includes a material comprising a material that is essentially only carbon, and also all carbon precursors such as a carbonaceous material. The term carbonaceous material comprises a material that has been pyrolyzed and which contains predominantly carbon, although incomplete combustion products may be present. For example, the carbonaceous material may be pyrolyzed cotton fiber from which carbon is derived.

In the second system, the fuel source may consist essentially of an inorganic system and comprise an inorganic non-combustible binder selected from the group of materials mentioned in the foregoing. • The remaining parts as a binder in the mixture. for the manufacture of packaging, for example Portland cement or potassium silicate. The fuel source may comprise a binder in an amount of 10 to 65% by weight, with the preferred amount of binder present being about 40% by weight. The fuel source may also contain 5 to 20% of the combustion promoter, in particular up to 10% by weight of the total amount of the fuel source. The fuel source may comprise from 25 to 70% by weight of carbon, preferably at least 55% by weight of carbon and most preferably at least 60% by weight of carbon. However, it has been found that acceptable combustion characteristics can still be maintained in the presence of 30% by weight of carbon, 60% of inorganic non-combustible binder and up to 10% of the combustion promoter when the fuel source is in the form of a rod. In this alternative material composition it is also possible to include a proportion of inorganic non-flammable filler in an amount of up to 60% by weight in order to reduce the density of the fuel source or to increase its strength.

In this example, the fuel source may be formed in the form of a shaped carbon rod having a porous structure to maintain continuous combustion along the length of the fuel source. In this shaping, it is advantageous to employ a molding technique which avoids the disadvantageous loss of water during the shaping of the rod. Forming a thick slurry containing carbon and binder within the hollow tube and removing the shaped rod from the tube after the rod has solidified or hardened is one of the methods of producing a fuel source. Alternatively, the extrusion process may be utilized.

In the third system, the fuel source consists essentially of an organic system and contains 15 to 70% by weight of carbon, 84 to 5% of a non-combustible filler, for example at least one inorganic filler material referred to in the package description, up to 5% of a plasticizer. of at least one low - melting fat; or

low melting point oils, and 1 to 20% organic binder, for example, cellulosic, alginate or pectin binder, and / or other binders described in connection with the coating. Mixtures of inorganic and organic binders may also be used, the proportion of inorganic binder being up to 20% by weight of the fuel source. The plasticizer is added to increase the mechanical strength and flexibility of the fuel source, and its proportion should be such that, when present together with the organic binder portion, no more smoke is drawn in by the smoker. A high proportion of organic binder could be useful if the binder produces a small amount of smoke, which then passes through the smoking article in the mainstream and which contains the smoke particles. The amount of carbon is adapted to the type and amount of binder and / or filler, so the upper limits should not be considered strictly limiting. The amount of carbon needed will also depend on the composition of the outer shell. The lower limits of the proportion of carbon used require that the outer packaging is more permeable than with larger proportions of carbon. Most preferably, the carbon content is between 25% and 35% by weight.

Extrusion can be accomplished by low pressure extrusion through a die using an extrusion force that is not much greater than atmospheric pressure, or by high pressure extrusion. In some cases, it may also be desirable to foam the product-forming material to achieve a cellular structure, particularly in the second or third systems depending on the formation of the final product. In a second system, foaming could be achieved by introducing air entrainers instead of a portion of the inorganic non-flammable binder and / or inorganic filler, if present. The air-entraining agents may consist of powder or liquid additives or porous particulate materials. In the third system, optional foaming can be achieved, for example, by adding a polysaccharide expanding agent, such as starch, and expanding

• · · · ·

addition of water at high pressure and temperature. The expansion agent could replace the binder or plasticizer or filler, if present in the mixture. Alternatively, other expanding agents such as pullulan or other polysaccharides may be used. Other agents capable of foaming may be solid foaming agents such as sodium bicarbonate, inorganic salts and organic acids forming on-site gaseous agents, propane or isobutane as organic gaseous agents, carbon dioxide or air as inorganic gaseous agents, volatile liquid foaming agents substances such as ethanol or acetone. Polysaccharide expansion substances are believed to be more convenient for their ease of use and also for safety reasons.

By extrusion, thin elongated individual veins may be formed in the longitudinal direction or a group of stiffer thicker rods, preferably coaxial within the rod of the smoking material. In the first two alternatives, i.e. in the pyrolyzed structure and in the inorganic system, the central rod may be replaced by a group of several thinner veins. By extrusion it is possible to form a sheet which is then torn or cut to form a fill similar to the cut tobacco fill. All of these processes are suitable for the manufacture of a fuel source, aerosol generating means, and a combined aerosol generating fuel source, which will be described later. For this production, it is also possible to use casting on a molding belt, a heated drum or other techniques for manufacturing flat products.

In all alternative embodiments of the fuel source with the exception of pyrolyzed rods, a fiber additive of up to 2% is preferred. This also applies to those methods of preparing aerosol generating compositions that are used for casting products or making paper.

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Aerosol generating means

The aerosol generating or generating means may be provided in the form of three different systems, which may, however, partially overlap one another.

The first system may be a substantially inorganic system comprising 95 to 30% of an inorganic non-combustible binder, for example one of those binders described in the fuel source, up to 65% of a non-combustible inorganic filler of a similar type to those described in the preferred fuel source embodiments; 30% of the aerosol generating composition also described in the previous section.

The second system consists of a partially inorganic system comprising 1 to 25% organic binder, 45 to 94 non-combustible inorganic filler material and 5 to 30% aerosol generating composition. The third system may be in part an organic system comprising, by weight, 1 to 25% organic binder, 1 to 94% organic filler material, up to 93% inorganic filler material, and 5 to 30% aerosol generating means. These systems are considered essentially non-combustible. The inorganic filler material is therefore selected in combination with proportions of other materials to form a substantially non-flammable aerosol-generating composition. Some inorganic fillers such as perlite, magnesium hydroxide, and magnesium oxide readily serve to provide the flame retardancy of the aerosol generating composition. Other fillers, such as chalk, do not reduce the flammability of the aerosol generating composition at certain amounts and are therefore not suitable for this purpose.

In particular, the organic filler material is a material other than tobacco and may contain inorganic salts of organic acids or polysaccharides and should provide smoke generation with acceptable taste characteristics.

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These two systems represent the two ends of the spectrum in which the inorganic and organic components of the binder and filler material can be gradually replaced by others. The third system may also contain certain amounts of the expansion agent described above as part of the organic filler material. An example of an aerosol-producing foam composition composition comprises 20% by weight of an organic binder, 20% of the aerosol-producing composition, 15% of starch as expanding agent, and 45% of the inorganic filler material. This type of aerosol generating composition may also contain flavoring agents.

In such systems, the presence of a small amount of fibrous material may be appropriate to assist formation of the sheet depending on the manufacturing technology used.

In particular, the aerosol generating composition comprises an aerosol former, in particular polyhydric alcohols, glycerin, propylene glycol and triethylene glycol, and optionally esters such as triethylcitronate or triacetin, or high boiling hydrocarbons.

Flavorings in the smoking rod are designed to promote an aerosol that gives the smoke a uniform but very pleasant taste and good aromatic properties. The taste and smell is not necessarily intended to replace the taste and smell of tobacco smoke. The flavoring agents may contain the aroma of, for example, tobacco extract, menthol, vanillin, caramel, chocolate or cocoa. Coloring agents, for example, food binders, caramel, malt, or extracts thereof, may be used to darken the filler material. The presence of vermiculite or other inorganic material, such as iron oxide, may also cause the filler material of the smoking article to darken.

The flavoring agents may also be added to or into the substrate, wherein the substrate may be an aerosol-generating and / or fuel source composition. These means are added near the mouth end of the smoking material rod in the smoking article or along the entire length of the smoking material rod so as not to be too much affected by the combustion temperatures. The percentages given in the previous sections refer to the amount of the substance without any flavoring agent, and when flavoring agents are added, these percentages are reduced. If an inorganic or organic filler material is present in the aerosol generating composition or fuel source, the percentages of these substances decrease as the amount of flavorants increases. If the filler material is not present, either the amount of carbon or the aerosol generating composition is reduced as the amount of flavorant increases.

As mentioned above, the aerosol generating means may be manufactured by conventional techniques used in the manufacture of paper or in the extrusion of shaped articles. The sheet material can be cut or twisted. The inorganic filler material of these systems may be used in systemic compositions without pre-processing operations carried out prior to forming the complete aerosol-producing composition.

Fuel source producing aerosol

As described in the foregoing sections, both the fuel source and the aerosol generating means are maintained substantially separate from each other, and each of these portions of the smoking article forms a clearly defined area of both the fuel source and the aerosol generating means. However, in some cases it may be advantageous to combine the two elements. This can be accomplished by mixing a physically separate fuel source and the aerosol-producing material or by forming a completely combined aerosol-producing fuel source. In the first case, a preferred embodiment of mixing the fuel source as a cut aerosol-producing fill material as the cut filler is to produce an aerosol-producing fuel source comprising a mixture of physically separated particles of cut filler material, the filler material extending over the entire length of the smoking article rod. These embodiments are particularly advantageous in that they can be produced by a process very similar to the conventional cigarette manufacturing process in which cut filler material is prepared for cigarette making machines. In the latter case, carbon is added to the aerosol-forming composition.

The aerosol-generating fuel source may consist of three different systems, but may overlap in scope. The first system is predominantly an inorganic system comprising, by weight, up to 35% inorganic filler material, 5 to 30% aerosol generating agent, 30 to 60% inorganic binder, 30 to 65% carbon and up to 10% combustion promoter. The aerosol generating composition is selected from the group of substances described in the preceding sections, with respect to the type of aerosol generating composition. Also, the other ingredients of the composition are to be selected from the respective groups described in the previous sections, illustrating other elements of the smoking article of the invention. This also applies to the systems that will be described later.

The second system consists of a partially inorganic system comprising not more than 86% by weight of inorganic filler material, 5 to 30% aerosol generating agent, 1 to 25% organic binder and 8 to 60% carbon.

Rather, the third system is an organic system containing, by weight, at most 93% organic filler material, up to 93% inorganic filler material, 5 to 30% aerosol former, 1 to 25% organic binder, and 1 to 60% carbon. The predominantly organic system may be a material with the composition. Tak «4 ·· ··· 9 9 9 9 9 9 9 9

9 9 9 -9 9 9 9 9 9 9 9 foamed by the presence of an expansion agent and / or an expansion agent in the amounts described in the foregoing sections.

The aerosol generating composition preferably contains 5 to 25% by weight of the composition.

The binder and aerosol generating means for the aerosol generating fuel source may comprise at least one of the binder and aerosol generating means mentioned above.

With an increase in the proportion of organic constituents and possibly an increase in bypass flow, the permeability of the outer envelope should be controlled to reduce the visible by-pass smoke resulting from combustion and depending on the composition of the fuel source. The thickness of the outer wrapper may also vary with respect to limiting the amount of visible sidestream smoke.

Product structure

The smoking article may be formed in a variety of embodiments. In all three fuel systems, the fuel source may be in the form of a longitudinally extending rod, group of veins or fibers, preferably located coaxially with the longitudinal axis of the smoking article. The rods, cores or fibers may have different cross-sectional shapes, for example, circular, oval, square, star or polygonal cross-sectional shapes, all of which may be solid or hollow and may be grouped together. In the second and third fuel source systems, it is also possible to use a sheet material which can be cut to form strips. The material of the third system can also be rolled to the desired shape.

If the fuel source is in the form of a central rod 9 99

9 9

9 9

9

9 9

Of carbonized wood or extruded rods of a second or third fuel system material, i.e., a fuel source containing cement and carbon, or a partially organic fuel source, the aerosol generating means may be in the form of a ring of cut aerosol-producing material or coil Such a material, coiled in the form of a hollow cylinder, having sufficient rigidity of its annular shape and a density sufficient to support the fuel rod while allowing air to be sucked in by the smoker and thereby air to pass through the smoking article.

A preferred option is to make rod fill material from cut fill material. In one instance, the central core may be formed of cut fuel material surrounded by a ring of cut aerosol-producing material. This arrangement can also be realized with the aerosol generating means as the core material and the fuel source as the annular material. For this purpose, known techniques can be used to produce coaxial elements from cut filler material, for example, to form a first coated rod of small size, which is introduced into a further accessory, and then the cut filler material is placed around the first rod.

In an alternative embodiment, in which an aerosol-generating fuel source is provided, separately cut particles of the aerosol-generating material may be intimately mixed with the separately cut material forming the source of combustible materials.

The total weight percent of the mixed cut combustible material with the cut aerosol-generating material preferably falls within the range of 30-35% carbon, 5-10% binder, 2% fibers, 5-10% plasticizer, and 40-60% inorganic material. This range may be included in individual layers of materials having the following compositions and in weight amounts:

Fuel source: 60 to 70% carbon, 7% propylene glycol alginate binder, 1% fibers and 32-22% perlite inorganic material.

Aerosol-producing compositions: 7% binder consisting of propylene glycol alginate, 1% fibers, 15% glycerin plasticizer and 77% perlite inorganic material.

In particular, these materials should be mixed in a 1: 1 ratio. However, other mixing ratios may be used to achieve the desired overall range of ingredients described in the previous section.

When the aerosol releasing agent is combined with a combustible material source, the sheet of material may be cut and inserted into the outer wrapper similarly to the cut filler. It may be advantageous to increase the proportion of combustible material in the other sheet or strip combined sheet material and use this material to form the central region of the higher carbon material surrounded by the cut lower carbon sheet.

When fuel and aerosol components are produced by extrusion, they can be formed in the form of rods, veins or fibers. The concentric core of several cores or rods or fibers may be formed of a combustion material and surrounded by a ring of collected cores formed of an aerosol-releasing material. However, the opposite arrangement is also possible. Another possibility of arranging these components is to mix the veins of separate combustible materials with aerosol generating means within the outer shell. The rods, veins, or continuous filaments may also be formed from a chemically combined material forming an aerosol-producing fuel source. These rods, veins and continuous fibers may be partially foamed if desired.

Where it is considered advantageous to provide a cellular structure 25

In the case of material, the core may be surrounded by a ring of foamed sol. Such a product may be formed from a foamed fuel source of the aerospace producing material by a coextrusion technique, for example by means of a split head screw extruder. However, the opposite arrangement is also possible. However, it is also possible that in all the embodiments described, either the core or only the material in the peripheral ring is foamed.

Smoking product

The smoking article preferably comprises a filter element, which may be of conventional fibrous cellulose acetate, polypropylene or polyethylene material or a composite paper material. Several filter elements can also be used. However, it is also possible to use filter elements having special pressure drop characteristics, for example filters sold by Filtrona and known as The Ratio Filter. Additional flavoring materials as described in the preceding section may be deposited on or within the filter element, which are released or vaporized from the filter elements by aerosol-generated heated or combusted aerosol generating means. There may be heat protection around the mouth end of the combustible material source and / or between the combustible material source and the filter element. This protection may advantageously comprise a more compressed section of material containing the aerosol generating means. The heat protection also includes aerosol releasing agents to increase aerosol delivery to the smoker and to protect the smoker from potentially overheated smoke while decreasing the length of the smoking article. In an alternative embodiment, the fire protection may be formed, for example, by a strip of combustion retardant material on the outside of the package. The heat protection may generally be formed of a combustible or non-combustible material.

The proportions of inorganic materials are selected with respect to:

Creating a smoking article from which as little visible smoke as possible is released. Conventionally manufactured cigarettes contain cut tobacco wrapped in a paper wrapper. A smoking article that releases a small amount of leakage and visible smoke in addition to the internal smoke passing through the product should achieve a reduction of this by-pass smoke of at least 30%, i.e. a reduction in particulate matter known as NFDPM (nicotine-free) dry particulate matter) to reduce the visible escaping by-product that can be seen with the naked eye. EP-A-0 404 580 discloses a smoking article with a paper wrapper that is extremely effective in reducing this visible visible smoke stream. In a smoking article comprising the inventive papers, a 60% reduction in particulate matter emissions outside the interior of the smoking article may be achieved compared to control cigarettes that do not have the inventive papers. When the smoking articles according to the invention and the smoking articles according to EP-A-0 404 580 are smoked side-by-side, it is clear that the smoking articles according to the invention emit even less visible smoke flow into the air than cigarettes according to EP-A-0 404 580. The smoking articles according to the invention thus have a high efficiency in reducing the visible emissions of visible substances, which is higher than all known products.

The smoking articles according to the invention preferably contain at least 50% by weight of inorganic material.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal cross-sectional view of the smoking article of the invention; FIG. 1a is a cross-sectional view of the smoking article of FIG. 1; FIG. 2 is a longitudinal cross-sectional view of the second smoking article; a cross-section of a third exemplary embodiment of a smoking

And FIG. 4 is a longitudinal section of a fourth exemplary embodiment of a smoking article.

DETAILED DESCRIPTION OF THE INVENTION

A first exemplary embodiment of a smoking article according to the invention is shown in the drawings of Fig. 1. 1 shows a cigarette 1 comprising a smoking material rod 2 and a filter element 3. The filter element 3 is made of a material similar to conventional cigarette filters, i.e. a fibrous cellulose acetate strand, but can be made from another type of fibrous material in which the pressure passing through the gas stream and the filtering effect, or a material in which there is a large pressure drop and a low filtering effect and which is not formed of fibers, if desired, can also be used. The filter element 3 is attached to the smoking material rod 2 by the mouthpiece cover 4. The filter element 2 may be aerated either by using ventilation perforations formed, for example, by laser, or by using material for the mouthpiece cover 4 having natural air permeability and any backsheet. The smoking material rod 2 comprises an outer wrapper 5, a coaxially disposed combustible fuel source 6 and a cut smoking material 7 disposed between the combustible fuel source 6 and the outer wrapper 5.

The outer casing 5 comprises 1% by weight of fibers, 4% propylene glycol alginate as a flammable binder, 5% glycerin as a plasticizer and 90% perlite as an inorganic non-flammable filler. The outer wrapper 5 is white in color, about 1 mm thick and looks very similar to the conventional paper wrapper of a conventional smoking article or cigarette.

The coaxial fuel source 6 is manufactured in accordance with the first &quot; β4 &quot;

Balsa wood cylindrical rods, having a diameter of about 4 mm, are made from cylindrical balsa rods. The balsa bar shape is ideal for creating an elongated fuel source with a circular cross-section. The pyrolyzed rod has acceptable strength and is properly robust when wrapped with cut smoking material 7. In the manufacture of smoking articles, the density of the starting rod as well as the density of the final mold is important. It has been found that if the fuel source has too high a density after pyrolysis, a sufficient amount of oxygen cannot reach the central part of the source and the fuel source cannot burn perfectly. If, on the other hand, the density of the pyrolyzed fuel source is too low, then the fuel source burns too actively and thus too fast. Tests have shown that balsa and ash are the most suitable woods for use in a smoking article, although other woods may also be useful materials.

The smoking material 7 is an aerosol generating material comprising a high proportion of non-combustible inorganic material, namely 80% perlite, 12% glycerine aerosol generating material, 7% propylene glycol alginate binder and 1% fibers, i.e. a partially inorganic system.

The smoking material is made from a slurry prepared from the respective components and by forming the reconstituted sheet material by standard manufacturing techniques used to make the sheet material. The layer of reconstituted inorganic material is then cut to form a cut smoking material 7, which is then placed around a combustible fuel source 6, consisting mainly of pyrolyzed balsa.

At the mouth end of the smoking article is located a region 9 with aerosol-producing materials into which flavoring agents such as vanilla or milk caramel have been introduced. Additional flavorings were placed in filter element 2 ·

In use, the cigarette 1 is ignited and burns after ignition

* ♦

9 9

9 ·

99 at the same time produces a very small amount of visible smoke, released outside the intake air stream. This visible side smoke is the product of combustion of the organic components of the smoking article and is most visible at the end of each stroke of the cigarette. The substantially non-combustible wrapper burns to form brittle white ash, similar to cigarette ash, which a smoker can shake as needed. The non-flammable outer casing 5, during its combustion, also forms a dark line in the combustion region that progresses along the smoking article during the combustion process. The smoking article is gradually burned along the length of the fuel source 6. Upon combustion, the cut smoking material 7 forms an aerosol which draws the smoker into the mouth. The aerosol is mainly glycerin and water, but it also contains vanilla and milk caramel aromas. Other flavorings such as tobacco extract and nicotine components, or other flavorings with a tobacco-like aroma, give the aerosol an acceptable taste and quality without burning any tobacco material. Additional flavorings are also applied to the filter element, which materials are to be released upon contact with the smoke or aerosol from the combusted rod 2 of the smoking material producing the aerosol. Aromatic substances in the filter are not necessary if enough flavor material is applied to the aerosol generating substance.

Giant. 1a shows an exemplary embodiment very similar to that of FIG. 1, which differs only in that the cigarette comprises a smoking material rod 2 which is not formed by the cut smoking material 7 but by the smoking material 7 ¹ formed of a coiled smoking material layer 8 which is coiled around the longitudinal axis of the fuel source 6. The coiled layer 8 is maintained in this state by a binder or adhesive strip of propylene glycerin alginate applied along the length of the fuel source 6. The coiled layer 8 of smoking material must be coiled to allow air to reach the combustible. · Musí ♦ ♦ ♦ musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí musí air to the flammable part of the cigarette.

The smoking article 10 shown in FIG. 2 has a similar design to the exemplary embodiment of the cigarette 1 of FIG. 1. The same parts of the cigarette 11 are designated with the same reference numerals as in FIG. 1, increased by ten.

In this exemplary embodiment, the outer shell comprises 15% fiber, 4.5% propylene glycol alginate and 94.5% perlite as an inorganic non-combustible material. No plasticizer was present in the package.

In this example, the fuel source 16 is a combustible material held together by a non-combustible binder. Fuel 16 contains carbon in the form of pyrolyzed coconut fibers, Portland cement and a small amount of potassium nitrate to promote combustion at a ratio of 8: 4: 1. Fuel source 16 was produced by hydrating cement with a 1.3 M potassium nitrate solution to form a slurry, adding pulverized carbon to the slurry with a small amount of detergent to wet the carbonaceous material, and adding water to form a slurry with a consistency similar to mud density. The fuel material rod was formed by introducing the slurry into the hollow tube, from which the rod was then extruded from its interior space after achieving sufficient mechanical strength after a period of drying, solidification and curing. Any excess moisture is then removed by heating the rod after being pushed out of the hollow tube. The fuel source 16 had a diameter of about 4 mm. When surrounded by the cut smoking material 17, the fuel source 16 is sufficiently rigid and robust to withstand normal handling during packaging and user handling.

In this exemplary embodiment, cocoa flavor is provided in the aerosol generating portion located downstream of the aerosol generating material 17 and within the filter element ** fS31

4 «• · 4

44

4 4

4

444 4 44 44 4 4 • 4444 4 * 4

444 · 44 44 44 44 44

The smoking article 20 shown in Fig. 3 is an example of a further possible improvement of the example of Fig. 2. In this cigarette 21, the smoking material rod 22 comprises cut smoking material 27 disposed around a carbon fuel source 26. The outer wrapper 25 is formed of two layers. The inner layer 40 is formed from the packaging material described in the examples of FIG.

and 2. The outer layer 41 is formed from a coating forming a visible outer wrapper limiting the ingress of secondary air, for example magnesium oxide, bound by a small amount of propylene glycol alginate. Overall, the package contained 79.5% perlite, 1% fibers, 4.5% propylene glycol alginate, and 15% magnesium oxide. The magnesium oxide coating is able to further reduce the visible sidestream smoke escaping, for example, from the smoking article of FIG. 2. There is practically no sidestream smoke in the smoking article 20. However, the outer wrapper 25 still produces a dark line of combustion, the progression of which allows the smoker to see if the cigarette 21 is ignited and thereby follow the progress of the combustion.

As an alternative to the coating forming the visible side stream reducing coating, the secondary stream reducing filler may be included in the applied packaging material to form a single coating. A typical composition of the treated outer shell 25 consists of 87.5% perlite inorganic material, 4% propylene glycol alginate as a binder, 7.5% magnesium oxide as a by-stream filler, and 1% fibers. 15% magnesium oxide levels were utilized efficiently with 80% perlite.

In this exemplary embodiment, the tobacco extract as flavoring substance was placed inside the filter element 23.

Giant. 4 shows another exemplary embodiment of the invention in which the same elements are again denoted by the same reference numerals, increased again by ten. Rod 32 of the smoking parent-32 of the smoking parent-32 The cigarette 31 is housed inside the wrapper 35 surrounding the cut smoking material, which is also combined with the fuel means to form a fuel source for the aerosol-producing fuel source 37. The aerosol generating fuel source 37 comprises a longitudinally extending fuel source and a longitudinally extending aerosol generating element. The aerosol generating fuel source 37 comprises 55% carbon (pyrolyzed coconut fibers), 12% aerosol producing glycerin, 7% propylene glycol alginate binder, 1% fibers and 25% perlite inorganic material. This material is produced by a process using the reconstituted sheet material described in the previous section and by casting the material either on the surface of drum or belt casting devices. Chocolate and menthol flavors are deposited at one end of the aerosol-producing fuel source 37. The aromatic material is also present in the filter element 33.

Examples of systems of other aerosol-producing fuel sources have also been produced that contain at least 10% of a capsule and 70% of a perlite inorganic material.

The wrapper 35 contained in one exemplary embodiment 4.5% of a propylene glycol alginate binder and 94.5% of perlite as an inorganic non-flammable filler material. In the second example, the outer shell contained 4.5% propylene glycol alginate, 5% glycerin plasticizer and 90% perlite.

all components of the aerosol-producing mixture may modify their color by replacing not more than 10% of an inorganic filler with a colorant, for example caramel or liquorice, or extracts thereof.

The percentage by weight of all ingredients disclosed in this specification determines the dry weight amount. The amount of water required to form a suitable solid slurry in an amount

T0d

Z ΐ 0228 0 0 »ť 3N0Hd eooideui-f-ua _; wOdd • · · · v ·

Φ · * · * «« «« «« «« «« «« «« «« ·· ·· up to 500 g (including glycerin) is usually around 1200 ml.

The following tables provide further details of exemplary embodiments of the smoking article of the present invention.

Table 1 contains details regarding the effect of material composition on the physical properties of the outer packaging.

The slurry was prepared from a hydrated binder and inorganic material according to the recipe shown in Table 1. Outer skins were formed using a 70 mm piston extruder with a wall thickness of 0.5 mm. The outer shells are dried at the exit of the die by two infrared heaters located 5 to 10 cm from the extrusion profile. The physical properties of the outer packaging are described in more detail in Table 1.

Table 2 describes in more detail the effect of the manufacturing conditions on the curing efficiency of the outer packaging using a calcium chloride solution.

The slurry was prepared from 10 g sodium alginate, 45 g chalk and 45 perlite with 200 ml water. The piston extruder was filled with slurry and the outer skins were formed by extruding the slurry through an in-die extruder die having an outer diameter of 8 mm and an inner diameter of 7 mm into a calcium chloride solution. The strength of the outer packaging was assessed subjectively by a group of three experts using a 10-degree scale ranging from 1 (indicating that the extruded profile did not change by immersion in the bath at all) to 10 (indicating that the extruded profile was completely cured and stiff).

The table shows that as the number of bath applications increases, the strength of the outer casing gradually decreases. The strength and stiffness of the outer sheath increases with increasing electrolyte solution concentration and longer immersion time in the bath.

 · · 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

Table 3 provides more detailed information on the combustion limits of the glycerine-based fuel aerosol-producing fuel source tested on a single strand of extruded material 1.0 mm in diameter.

Table 4 shows the binder effect on the combustion characteristics of the various carbon and glycerin-based aerosol-producing fuel sources detected on a single strand of 1.00 mm diameter extruded material. Some binders are more flammable than others and therefore influence the properties of the aerosol fuel source.

Table 5 shows the effect of the type of filler on the combustion characteristics of various aerosol-producing fuel sources formed on a carbon and glycerin basis, which effects were determined on a single strand of extruded material with a diameter of 1.00 mm. Some inorganic fillers facilitate combustion in the region of the aerosol-producing fuel blends. In the described cases, chalk is the preferred filler. This table should not be taken as an indication that fillers used in mixtures having ranges other than those specified should not be burned.

The tests performed in the preparation of Tables 3,4 and 5 were conducted on individual rods or strands of material smoldering in the air rather than a number of strands of material within the outer shell to avoid any effect of the outer shell on the combustion of the strands of material.

Table 6 shows the amount of smoke produced from filter-terminated cigarettes having the following structure:

The 5 mm length filter was obtained from State Express International and contained fibrous cellulose acetate of Y-shaped fibers having a nominal weight of 2.8 denier and a total weight of 34,000 denier, with the filter running out

· · «» »» »» »» · · · · · · · · · · · · · · · · · · · To decrease the pressure by 13 mm water column.

The substantially non-flammable outer casing was extruded by means of a piston extruder with a nozzle provided with an inner liner having an outer diameter of 8 mm and an inner diameter of 7 mm, and the aerosol-producing fuel source being extruded in the form of rods or strands of 1.00 mm diameter. wherein the individual strands are pooled together and inserted into the dried extruded outer wrapper. The length of the cigarette rod, i.e. without the filter element, was 67 mm. One cigarette of the amount produced was smoked under normal conditions in an appropriate machine, in which every minute the cigarette was smoking through strokes lasting two seconds and having a volume of 35 cm ³ .

The first five examples of Table 4 show that strands formed from carbon as a fuel burn without producing a noticeable amount of total solids (TPM) even in the presence of organic material (PGA) in the fuel cords or strands.

The cigarettes of the invention have a very low level of visible side-stream smoke. However, the nature of the sidestream smoke from the products of the invention does not allow it to be captured by a conventional dovetail measuring device described in Analyst, October 1988, Volume 113, pp. 1509-1513 as a suitable measuring device. It is therefore not possible to provide more detailed information in this respect.

 • ** · · • • · 4 4 4 4 4 4

·························

Influence of material composition on physical properties of outer packaging

Whiteness packaging (DE) io cm ό io cm m t-co σι K · »» 1 ο σι σι σι σι η co cm Energy to squeeze the package (J) Π CM CM ιη ιη ιη Permeability (CU) ιη what ιη ιη> »· - - - - - gt ^ HoininininSS -φ> · μ · cm ClDNlOCO ^ dOCC Η Η Μ Η σι η γ - »η ο η ri ri cm ri u ο Η Water (G) οοοοοοοοοοοοοοηηοοοιηοιηο ο οο ooooor- ^ ovoomcncMcocoio ^ cncMHH> ο ο COCMCMCMCM ΙΠίΜΜΗΗΗΗΗΗΗΗΗΗΗ Η Η AND Dry matter (G) ΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟΟ οοοοοοοοοοοοοοοοοοοοοοοοοοοοοο rlrlrlrlrfrlHrldrlHHrlrlrlrlrlrlrlHrlHrldrlrl % Plasticizer glycerine) cm ιη ο ο ο ο i — 1 CM CM CM CM -] Type Binder uouooouuiiowwi << oooouoouayuu % binders ιη ιη ιη ιη · * Κ · κ ιη 1 1γγγγγγγγγγγγγγγγγ γγγγγγ γ — 1γγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγ OJ OJ OJ OJ — 1 OJ OJ OJ OJ OJ OJ <<<<<<<<<<<<<IΗ % chalk m · in * σι > o o> in in in <o σι what σι σι si * μ · +> o \ o -H i-l Φ and ιη ιη ιη ιη * “· Κ *» κ ιη cm ο ιηιηοοιηιηοα> <η <<>η> οιη -'-ιηΐ co cm co ^ r-cioi ^ MOiacoco ^ r-r-oioicicor

· · • · · · · · ·

Table 1 (continued)

Whiteness packaging (DE) Energy to squeeze the package (J) dl OJ cn cn <n rl Permeability (CU) tn r- - - m β in rlOiClffidiOkOO CO β 0Ί CO co η> d h co r-οι o oi td td td Water (G) o inooinoinoo o co o cicooioo ^ dio di d d d OJ d d d d td Dry matter (G) oooooooooooooo o o oooooooooooooo o o dddddddddddd td td % Glycerin plasticizer) Φ Φ β β Φ P Ρ 'Φ' Φ β tn tn> P 0 Φ 0 Φ &> 'Φ' Φ X, X β X β Type Binder 10 10 β Ρ β Ρ Λ! <<! · Η> Φ to <<<; <Φι << ΦΦΦΦΟ> 0> Λ ϋΟΟΟΑΦΦυυρρΛΟΛΟΦ 15 fc, Μ, Μ to Λ! M w Φ % binders o oooooooo o o o o OHr1HHHHHri rl rd rl rl rl % chalk tnoinoin in m ca cm tn v 'ť in m * % perlite inoinoinotnoinoino in in cor ^ co ^^ oi ^ oisřcn ^ cn v v

P '«3

C 'Φ • rd β ÍP Ό P rd 0 10 Φ it 0 β P > 1 Φ -P> it P > Φ 10 Rd -rd Ή Ή 0 N 0 fi rd Pr> rd Ό rd Φ T3 P -P O rd , P Pr 0 Pr 10 Λ4 P rd 'Φ > N * ird Φ > 'Φ O 0 rd φ '> 1 U 1 β Λ β

tn o c h o> m β >β>, ββφ t 'Φ> t 0 Λ Φ Φ P Φ' Φ ΗΛβΡΟΟΦ> β> ιΡίβΦ01! 0Λ '(βΗ

Pl Φ O> ιΡ ι-P P

P X Φ 'X Φ Φ ftO C Ο fi C

Φ> Ο Η Λ4 β Φ> -ρ

Φ Ή Μ> Ρ to> φ β

X Ρ · Η Λ

Ό Ό CP Μ tι tJIrl * κ * Ί rd Φ rd d Ό φ Ρτ, β ΦΧ φ Ιβ ο Ο β <

υ φ <U g <U β

Μ Μ rf U φ W W β ft Κ 2 W I? Ž Q Ο ί «·

· ® ® ® · · · · · · · · · · · · ·

Table 2

The influence of production conditions on the curing efficiency of the outer shell by the calcium chloride solution

Concentration of calcium chloride solution (Μ l ¹ ) Bath immersion time (s) Number of bath uses before this measurement Subjective rigidity external packaging 0 0 0 1 1 2 0 4 1 4 0 6.5 1 6 0 7.5 1 8 0 8 1 10 0 8 1 60 0 9.5 0.1 10 0 2.5 0.5 10 0 4.7 1 10 0 6.7 2 10 0 7.7 1 10 1 7 1 10 2 6 1 10 3 6 1 10 4 5 1 10 5 5 1 10 6 4 1 10 7 3.6 1 10 8 3

^ 3 9 9 9 9 9 9 9

999 9 9 9 9 9 9 9 9 (β

Iί ι — I

Β (β

Η γΗ ο

ω ο

Μ ω

<ϋ

Λ ο

Μ ϋ

Ή

Ό

Ο

Μ

Λ β

Ή

Μ - * Φ Φ Ο β> ι Φ Η 0 ΪΡ (β Μ

0ι (0

Ο 3 Λ

Α <

Μ

Ο β

Ό

Φ τη • Η> Φ Ν 0 Φ Μ Λ Ο <Ρ (t Φ C>

ί>

• Η ι — Ι Φ and ο

Μ ϋ

Ν

Ή β

'ί>

Ο

Β (β

Λ ω

φ

Ν

Ή > Μ 0 β Φ β % chalk 08 / 76 65 77 72 ιο 60.5 80 70 76 68 03 Ν Η θ 'θ' θ ' ιη oj ο> >>> ΙΟ 'Φ Ρ Φ ο \ ° ο ΡΜ 10 ο ο Η Η Ο ο Η γΗ ο γΗ Ο ρΗ Ο rH Ο Ο Ο Η Η Η ο ο ο Η Η Η Ο Ο Ο Ο Η Η Η Η • Ρ Fuel combustion. % Glycerin 10 10 20 May ¹¹¹ 3 ί ¹⁵ I 21.5 ο ° η ^Η Η ^m Η ο and ο ο η ο η 5 3 ο sř ΙΓ> CO C0 C0 C0 10 10 11 11 (Ν CN O-J Η Η Η m ιη ο ο ι-Ι i — 1 04 05 Η Ρ 0 % chalk 65 63 56 52 νο νο 61 64.5 σι co σι ό tn ιη <3 · 70 69 68 67 57 69 55 64 60 60 0- ιη <· ιη 40 β φ Ρ _{> β} <! <Μ ° Ο λ φ Ρ Ο ο Η Η ο ο Η Η Ο Η Ο ο γΗ ϊ— Η Ο Ο Ο Η Η Η Η Ο Ο Ο Ο Ο Η Η Η Η Η Ο Ο Ο Ο Ο Η Η Η Η Η Ο γΗ Ο rH Ο γΗ (0 WITH ‘Η Η Λ and Ή β £ 0 % glycerine 20 May 20 May 26 30 ! 15 Dec 20 May 15.5 ιη ο η ο Η ν ηι η '. Ο Η Ο ⁰³ ι — 1 Η Ο 10 Ο ιΰ ° Ο ΓΊ <0 ο Η (β and % carbon ιη> CO C0 σ 9 10 Η Η Η Η Η Η Η Η Ν CN (Ί (\ η Η ri Η Η Η tn ιη ο ο ο Η ι-Ι 04 04 η 30 30 ι 50

* 0 * •

Table 4

Effect of binder species on combustion characteristics of various aerosol-producing fuel mixtures

Type of binder propylene- glycolic alginate sodium alginate Calcium alginate pectin hydroxy- propyl- cellulose 8% carbon 11% glycerin 71% chalk 10% binder No Yes No No Yes 12% carbon 11% glycerin 67% chalk 10% binder Yes Yes No Yes Yes 16% carbon 11% glycerin 63% chalk 10% binder Yes Yes No Yes No 8% carbon 11% glycerin 61% chalk 20% binder Yes Yes No Yes Yes 12% carbon 11% glycerin 57% chalk 20% binder Yes Yes No Yes Yes 16% carbon 11% glycerin 53% chalk 20% binder Yes Yes No Yes Yes 8% carbon 11% glycerin 51% chalk 30% binders Yes No No Yes 12% carbon 11% glycerin 47% chalk 30% binders Yes No No Yes 16% carbon 11% glycerin 43% chalk 30% binders Yes No No Yes

· «>

• · · · · · · ·

· · ·. · · · ·........

the mixture was not made

· »» »» »» »« «

Table 5 (continued)

kieselguhr No 0 C No No hydroxide magnesium No No No 1 No Type of filler sulfate Calcium No and 1 1 chalk Yes Yes No No bentonite 1 No No oxide magnesium No No No 1 perlite No 1 No Fuel mixture 12.5% carbon 10.4% PGA 11.5% glycerin 65.6% filler 10.5% carbon 13.2% PGA 14.5% glycerin 61.8% filler 9.3% carbon 11.6% PGA 12.8% glycerin 66.3% filler 8.3% carbon 10.4% PGA 11.5% glycerin 69.8% filler

The mixture was not prepared.

Cigarette smoke yield with filter according to

N

O)

glycerine (mg) .-r »-« - · - O O O O O O CM Η Η Η Π Μ O Μ O Π O Μ Μ Π Π W3 V V V V TPM (mg) O O <N o H OfOnOCJCt fO CO CO> it **. * »·«. *. * »*» * » * »O * · o *» o * ooooo o ´ ί η ím η η o in in> 10 n rd number moves it fQ cq about it jg in o what in a>> what what oo σι Z in what what> owl OH O o o o % PGA binder OOOOO oooooo o ooooo ooo rl rd rd rd rd rd rd rd rd rd rd rd rd rd Η Η rl <—I rd % chalk in co in ooo> cm σι o 10 γμ o σι co co m ¹ o co>>> co v>> co co in r- co co * x> vo co co w % glycerine in in <* » ooooo ω ooooo inmin rd o rd rd rd rd rd rd rd rd OJ 03 % carbon OJinOOO CO OJ LD O O O O CO rd 03 OOH CO CO rdrdOintT) rd rd OJ CO rd rdrdrd rd rd mass (G) ιη in H what n oo what h what h o what o and what in in what oj <o what id ιη σι οι> -Φ what σι η σι what about σι σι oo h what η what σι ď 'd what n> what σι what h what what in what σι η> σι what oj h o in>> what in what about ~> what r-- what what> what what in what>> what> fc ** K * · *. -%. <*. ». «» *. .. *. OOOOO oooooo o ooooo ooo % sodium alginate ooooo oooooo o ooooo ooo o HHHHH HHHHHH Η HHHHH HHH HH 3 4-> • H o \ o H Φ ooooo oooooo o ooooo ooo o σι σι σι σι σι σι σι σι σι σι σι σισισισισι σισισι σισι Mass (G) ιη ιη ιη μ * oj η μ · ιη> ο oj co ιη σι ο oj ιη ιη co Η co Η co oj co> η ο ί ¹ ιη> η η ο <# d η> η co η what ο what ο σ η> what ο η η>> η η what cm ο what ο what what η η what is μ ¹ 'ï what cocococo-tfco ιη ιη what ιη what ιη ιη what-ï »» Κ *. *. * * * Κ *. * · * * »*» * »Κ Κ%>. · Ooooo oooooo o ooooo ooo oo

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Claims (92)

PATENT CLAIMS A smoking article having a smoking bar comprising a substantially non-flammable wrapper extending along the length of the smoking material rod and wrapping the smoking material, the smoking material comprising a combustible fuel source extending substantially along the length of the smoking material rod and an aerosol generating means running along the length of the smoking article rod. characterized in that the casing (5, 15, 25) is formed from a predominantly non-flammable particulate inorganic filler material, a binder or plasticizer, and optionally a small amount of cellulosic fibrous material, and the inorganic filler content is at least 65% by weight. A smoking article having a smoking material rod, comprising a substantially non-flammable wrapper extending substantially along the length of the smoking material rod and wrapping the smoking material, the smoking material comprising a combustible fuel source extending substantially along the entire length of the smoking material rod and an aerosol generating means disposed between the fuel. and extending along the entire length of the smoking article rod, wherein the wrapper (5, 15, 25) is formed from a predominantly non-combustible particulate inorganic filler material, a binder or plasticizer, and optionally a small amount of cellulosic fibrous material and an inorganic filler content. the material is at least 65% by weight of the package. A smoking article according to claim 1 or 2, characterized in that the fuel source (6, 16, 26) and / or the aerosol generating means comprises longitudinally extending rods, strands or fibers. Smoking article according to claim 1 or 2, characterized in that the fuel source (6, 16, 26) comprises 99999. 9 9 9 9 9 «Contains cut fill material. A smoking article according to claim 1 or 2, characterized in that the fuel source (6, 16, 26) and / or the aerosol generating means comprises a coiled sheet. A smoking article according to claims 1 to 4, wherein the aerosol generating means is a cut filler material. The smoking article of claims 1 to 4 or 6, wherein the fuel source and aerosol generating means comprise cut filler material. 8. The smoking article of claim 7, wherein the cut filler material is a blended mixture. The smoking article of claim 1 or 2, wherein the aerosol generating means and the fuel source are combined to form an aerosol generating fuel source. A smoking article according to claims 1 to 7, wherein the aerosol generating means and the fuel source are in the form of a core and a peripheral ring. A smoking article according to claims 1 to 10, wherein the aerosol generating means and the fuel source are in the form of a core and a peripheral ring of foam components. A smoking article according to claim 1 or 2, wherein one of the fuel source or aerosol generating means is a foam material. A smoking article according to claims 1 to 12, characterized in that the smoking article further comprises a filter element (3). A smoking article according to claims 1 to 13, wherein at least 50% by weight of the article is inorganic material. A smoking article according to claims 1 to 10, wherein the wrapper has the features of claims 20 to 42. • · ·· «* A smoking article according to claims 1 to 10, wherein the fuel source has the features of claims 43 to 58. A smoking article according to claims 1 to 10, wherein the aerosol generating means has the features of claims 59 to 72. 18. The smoking article of claim 9, wherein the aerosol-generating fuel source has the features of claims 73 to 85. A smoking article made by the method of claims 86 to 95. A substantially non-flammable wrapper for a smoking article formed from a predominantly non-flammable inorganic filler material, a binder and optionally a plasticizer, and optionally a small amount of cellulosic fibrous material, wherein the inorganic filler material content is at least 65% by weight of the wrapper. 21. The substantially non-flammable smoking article wrapper of claim 20, wherein the non-flammable inorganic filler material is a non-metallic material. Packaging according to claim 20 or 21, characterized in that the non-flammable inorganic filler material comprises at least one material selected from the group consisting of perlite, vermiculite, diatomaceous earth, colloidal silicon dioxide, chalk, magnesium oxide, magnesium sulfate, magnesium carbonate or other non-combustible. low density filler material. Packaging according to claim 20, characterized in that the inorganic filler material constitutes at least 70% by weight of the total weight of the packaging. Packaging according to claim 23, characterized in that the inorganic filler material constitutes at least 80% by weight of the total weight of the packaging. Packaging according to claim 24, characterized in that the inorganic filler material constitutes at least 90% by weight of the total weight of the packaging. * 11 ♦ · · • · 1 · · «· · Packaging according to claims 20 to 25, characterized in that it comprises up to 10% by weight of fibrous material of the total weight of the packaging. Packaging according to claims 20 to 26, characterized in that it contains a binder and / or a plasticizer up to 30% by weight of the packaging. A package according to claim 27, wherein the amount of binder is up to 25% by weight of the package. The package according to claim 27 or 28, wherein the amount of binder is from 8 to 10% by weight of the package. Packaging according to claim 27 or 28, characterized in that the amount of binder is up to 5% by weight of the packaging. Packaging according to claims 27 to 30, characterized in that the binder is an organic binder selected from at least one class of cellulose derivatives, cellulose ethers, alginic binders, gums, gels, pectins or starches. 32. The container of claim 31, wherein the binder is at least one of sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, ammonium alginate, sodium alginate, sodium calcium calcium alginate, calcium ammonium alginate, potassium alginate, magnesium alginate, triethanolamine alginate, propylene glycol alginate, aluminum alginate, copper alginate, zinc alginate, silver alginate, acacia, ghatti gum, tragacanth gum, karai gum, locust bean gum, acacia gum, acacia gum, acacia gum, acacia gum, acacia gum, acacia gum, acacia gum agar, agarose, carrageenans, seaweed ingredients, or furcelan. Packaging according to claims 27 to 30, characterized in that the binder is a non-flammable inorganic binder. Packaging according to claim 33, characterized in that the binder is at least one of potassium silicate, magnesium oxide in combination with potassium silicate, or cement. Packaging according to claim 27, characterized in that the plasticizer is present in an amount of up to 20% by weight of the total weight of the packaging. Packaging according to claim 35, characterized in that the plasticizer is present in an amount of up to 10% by weight of the total weight of the packaging. The package of claim 36, wherein the plasticizer is present in an amount of up to 5% by weight of the total weight of the package. Packaging according to claims 27 to 37, characterized in that the plasticizer is at least one of glycerine, propylene glycol, low melting point fats or low melting point oils. Packaging according to claims 20 to 38, having a permeability ranging from 1 to 150 Coresta units. Packaging according to claims 20 to 39, characterized in that it comprises a deodorant selected from the group comprising citronelal, geraniol or vanillin. 41. A fuel source of a smoking article extending substantially along the length of the smoking article, comprising a carbonaceous material, an inorganic non-combustible binder, and optionally a combustion promoter. A smoking article fuel source according to claim 41, characterized in that the inorganic non-combustible binder comprises at least one of potassium silicate, magnesium oxide in combination with potassium silicate, or cement, in particular Portland cement. 43. The smoking article fuel source of claim 41 or 42, which comprises an inorganic non-combustible binder in the range of 10 to 65% by weight of the fuel source. «Βί. 99 999 * 44. The smoking article fuel source of claim 43, wherein the binder is present up to 40% by weight of the total weight of the fuel source. The fuel source of the smoking article of claims 41 to 41 44 comprising 5 to 20% combustion promoter. The fuel source of the smoking article of claims 41 to 41 45, characterized in that the fuel source contains 25 to 70% by weight of carbon. 47. The smoking article fuel source of claim 46, wherein the fuel source comprises at least 55% carbon by weight. 48. A smoking article fuel source as claimed in claim 41, comprising in amounts by weight about 30% carbon, 60% inorganic non-combustible binder, and up to 10% combustion promoter. 49. A fuel source for a smoking article having a length substantially corresponding to the entire length of the smoking article, comprising 15 to 70% carbon, 84 to 5% non-combustible inorganic filler material, up to 5% plasticizer, 1 to 20% by weight. % of an organic binder and up to 20% of an inorganic binder, wherein the plasticizer comprises at least one low melting point fat or a low freezing point oil. 50. The smoking article fuel source of claim 49, wherein the carbon content is from 25 to 35% of the total weight of the fuel source. A smoking article fuel source according to claims 49 to 50, wherein the non-combustible inorganic filler material comprises at least one of perlite, vermiculite, diatomaceous earth, colloidal silica, chalk, magnesium oxide, magnesium sulfate, magnesium carbonate, or other. low density non-combustible filler material. · · T · t t t t t t · t t · · · · · A smoking article fuel source according to claims 49 to 51, wherein the organic binder is selected from at least one class of cellulose derivatives, cellulose ethers, alginic binders, gums, gels, pectins or starches. 53. The smoking article fuel source of claim 52, wherein the organic binder is sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, ammonium alginate, sodium alginate, sodium-calcium alginate, calcium-ammonium alginate, potassium alginate, magnesium alginate, magnesium alginate, magnesium alginate. triethanolamine alginate, propylene glycol alginate, aluminum alginate, copper alginate, zinc alginate, silver alginate, gum arabic, gum acacia, gum tragacanth, gum carob gum, agglomerate gum, acacia gum, semar gum, guar gum, guar gum, guar gum, guar gum , carrageenans, seaweed ingredients or furcelan. A smoking article fuel source according to claims 49 to 51, wherein the inorganic binder is at least one selected from the group consisting of potassium silicate, magnesium oxide in combination with potassium silicate, or cement. 55. An aerosol-generating composition comprising a non-flammable inorganic filler material, an aerosol-forming composition, and an organic or inorganic binder. 56. The aerosol-producing composition of claim 55, wherein the composition comprises from about 95% to about 30% of an inorganic non-combustible binder, from about 45% to about 90% of a non-combustible inorganic filler, and from about 5% to about 30% of the aerosol-forming composition. 57. The aerosol-producing composition of claim 55, wherein the composition comprises from 1 to 25% organic binder, from 50 to 94% non-flammable inorganic filler, and from 5 to 30% aerosol former. · * * «« · · · · · · · * * • · · ··· 58. An aerosol-producing composition comprising an organic filler material, an aerosol former, an organic binder, and optionally a non-flammable inorganic filler material. 59. An aerosol-producing composition according to claim 58 comprising 1 to 25% organic binder, 1 to 94% organic filler, up to 93% inorganic filler, and 5 to 30% aerosol-forming composition. 60. An aerosol-producing composition according to claims 55 to 59, wherein the non-combustible inorganic filler material is at least one selected from the group consisting of perlite, vermiculite, diatomaceous earth, colloidal silica, chalk, magnesium oxide, magnesium sulfate, magnesium carbonate or other low-density non-combustible filler material. 61. An aerosol-producing composition according to claims 55 to 60, wherein the organic filler material comprises inorganic salts of organic acids or a polysaccharide material. 62. The aerosol-producing composition of claims 55 to 61, wherein the aerosol-forming composition comprises at least one high boiling polyhydric alcohol, ester or hydrocarbon. 63. The aerosol-producing composition of claim 62, wherein the aerosol-forming composition is at least one selected from the group consisting of glycerin, propylene glycol, triethylene glycol, triethyl citrate, or triacetin. An aerosol-producing composition according to claims 55 to 63, wherein the organic binder is selected from at least one class comprising cellulose derivatives, cellulose ethers, alginic binders, gums, gels, pectins or starches. · · · • • • • * * * * «* ♦ 65. The aerosol-producing composition of claim 64, wherein the organic binder is at least one of sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, ammonium alginate, sodium alginate, sodium-calcium alginate, calcium alginate. ammonium, potassium alginate, magnesium alginate, triethanolamine alginate, propylene glycol alginate, aluminum alginate, copper alginate, zinc alginate, silver alginate, gum arabic, gum acacia, gum tragacanth, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia quince, xanthan gum, agar, agarose, carrageenan, seaweed constituents or furcelan. 66. The aerosol-producing composition of claim 55 or 56, wherein the inorganic binder is at least one of potassium silicate, magnesium oxide in combination with potassium silicate, or cement. 67. The aerosol-producing composition of claim 58 or 59, wherein the aerosol-producing composition comprises an expansion agent. 68. The aerosol-producing composition of claims 55 to 67, wherein the aerosol-producing composition comprises flavoring agents. 69. A fuel source producing an aerosol in a smoking article comprising a non-combustible inorganic filler material, aerosol forming substances, an organic or inorganic binder, and carbon. 70. The aerosol-producing fuel source of claim 69, wherein the fuel source comprises in amounts up to 35% inorganic filler, 5 to 25% aerosol former, 30 to 60% inorganic binder, 30 to 65% carbon, and 10% combustion promoter. 71. The aerosol-generating fuel source of claim 69, wherein the fuel source comprises up to 86% by weight of inorganic filler, 5 to 25% aerosol former, 1 to 25% organic binder, 8 to 60% carbon. 72. A fuel source producing an aerosol in a smoking article comprising an organic filler material, optionally a non-combustible inorganic filler, an aerosol former, an organic binder, and carbon. 73. The aerosol-producing fuel source of claim 72, wherein the fuel source comprises from about 93% to about 0% organic filler, to about 93% inorganic filler, from about 5% to about 25% aerosol former, from about 1% to about 25% organic binder, and 1 to 60% carbon. 74. The aerosol generating fuel source of claims 69 to 73, wherein the non-combustible inorganic filler material comprises at least one selected from the group consisting of perlite, vermiculite, diatomaceous earth, colloidal silica, chalk, magnesium oxide, magnesium sulfate, magnesium carbonate or other low-density non-combustible fillers. 75. The aerosol generating fuel source of claims 72 to 74, wherein the organic filler material comprises inorganic salts of organic acids or polysaccharide materials. 76. The aerosol generating fuel source of claims 69 to 75, wherein the aerosol former comprises at least one of high boiling polyhydric alcohols, esters, or hydrocarbons. 77. The aerosol-producing fuel source of claim 76, wherein the aerosol-forming composition comprises at least one of glycerin, propylene glycol, triethylene glycol, triethyl citrate or triacetin. ·· 78. The aerosol generating fuel source of claim 69 or 70, wherein the inorganic binder comprises at least one of potassium silicate, magnesium oxide in combination with potassium silicate, or cement. 79. The aerosol-producing fuel source of claims 69 and 71 to 78, wherein the organic binder comprises a substance selected from at least one class comprising cellulose derivatives, cellulose ethers, alginate binders, acacia, gels, pectins, or starches. 80. The aerosol-forming fuel source of claim 79, wherein the organic binder is at least one of sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, ammonium alginate, sodium alginate, sodium calcium alginate, alginate. calcium-ammonium, potassium alginate, magnesium alginate, triethanolamine alginate, propylene glycol alginate, aluminum alginate, copper alginate, zinc alginate, silver alginate, gum arabic, gum ghatti, gum tragacanth, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia, gum acacia from quince seeds, xanthan gum, agar, agarose, carrageenan, seaweed constituents or furcelan. 81. The fuel source producing an aerosol in the smoking article of claims 72 or 73, comprising an expansion agent. 82. A method of producing a substantially non-combustible contents of a smoking article comprising a predominantly non-combustible inorganic filler material and a binder, comprising preparing a mixture of a non-combustible inorganic filler material and a binder, extruding the mixture to form a hollow tube and contacting the hollow tube with rapid hardening of the hollow tube. 83. The method of claim 82 wherein the hollow tube-inducing material is &quot; &quot; A water-evacuating substance which removes the water contained in the tube, a solution converting the soluble binder in the tube mixture into an insoluble or hydrophilic substance withdrawing water from the aqueous tube production mixture. 84. The method of claim 82 or 83, wherein the extrusion process is carried out at a pressure of 300 to 400 kPa applied to the extrusion head of the piston extruder. A method according to claim 82 or 83, characterized in that the extrusion process is carried out under pressure by a press at a pressure of up to 900 kPa acting in a screw extruder. 86. The method of claim 83, wherein the water evacuating agent is light magnesium oxide. A method according to claim 83, characterized in that the soluble alginate is rendered insoluble by the addition of dissolving agents, in particular ammonium hydroxide or calcium chloride. 88. The method of claim 83 wherein the hydrophilic agent is ethanol. 89. The method of claims 82 to 88, wherein a subcritical amount of coagulant is added to the extruder container prior to extrusion, and after extrusion, the coagulant level is raised to a critical level to induce complete precipitation. 90. The method of claim 82 wherein the individual operations are performed sequentially. 91. The method of claims 82 and 83, wherein the coating composition comprises sacrificial molecules that can be removed after the coating has been formed by heat or chemical reaction. 92. A smoking article having a rod of smoking material, comprising a substantially non-flammable wrapper extending substantially along the length of the smoking material and wrapping the smoking material, the smoking material comprising a combustible fuel source in progress. 9 9 9 * 99 9 9 9 99 substantially along the length of the smoking material rod and the aerosol generating means extending along the length of the smoking material rod 93. A smoking article having a smoking article rod comprising a substantially non-combustible wrapper extending substantially along the length of the smoking article rod and wrapping a combustible fuel source extending substantially along the length of the smoking article rod and an aerosol generating means disposed between the fuel source and the wrapper extending along the length. smoking article bars.